The IC3 Messaging / Transport team is looking for a Senior Software Engineer to design, build, and operate highly reliable, scalable, and secure cloud services that power message delivery across Microsoft 365.
In this role, you will work on large-scale distributed systems and critical transport infrastructure. You will contribute to service architecture, feature development, reliability improvements, performance optimization, monitoring, incident investigation, and production operations. You will also help modernize the Transport platform, improve engineering automation, and apply AI-native approaches to development, testing, debugging, and operational workflows.
Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
Responsibilities
Design and develop high-quality backend services and software components.
Apply a systematic approach to solving complex and ambiguous engineering problems.
Develop simple, extensible, reliable, and maintainable software designs.
Make sound technical tradeoffs across quality, performance, reliability, cost, and development velocity.
Write high-quality, well-tested, secure, and maintainable code.
Diagnose complex technical and production issues and drive problems to resolution.
Use data, telemetry, and engineering evidence to improve software and make technical decisions.
Understand modern AI technologies and effectively leverage AI and AI-assisted engineering tools to improve development, testing, debugging, and productivity.
Explore new technologies and apply them where they can meaningfully improve products or engineering practices.
Collaborate effectively with engineers and partner teams to deliver end-to-end solutions.
Qualifications
Required Qualifications:
- Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
- OR equivalent experience.
Other Requirements:
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
- Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
- Master's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
- OR Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
- OR equivalent experience.
- Solid software design and problem-solving skills.
- Experience developing and operating production backend services.
- Good understanding of APIs, data modeling, concurrency, cloud technologies, performance, reliability, and security.
- Ability to analyze and resolve complex technical problems.
- Practical understanding of generative AI, LLMs, AI agents, or AI-assisted software development.
- Ability to learn new technologies quickly and apply them to real engineering problems.
- Solid communication and collaboration skills.
This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.
Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.
Skills Required
- Bachelor's degree in Computer Science or a related technical field and 4+ years of technical engineering experience coding in languages such as C, C++, C#, Java, JavaScript, or Python, or equivalent experience.
- Ability to meet Microsoft, customer, and/or government security screening requirements, including the Microsoft Cloud Background Check.
- Master's degree in Computer Science or a related technical field and 6+ years of technical engineering experience, or bachelor's degree and 8+ years of experience, or equivalent experience.
- Solid software design and problem-solving skills.
- Experience developing and operating production backend services.
- Understanding of APIs, data modeling, concurrency, cloud technologies, performance, reliability, and security.
- Ability to analyze and resolve complex technical problems.
- Practical understanding of generative AI, LLMs, AI agents, or AI-assisted software development.
- Ability to learn new technologies quickly and apply them to real engineering problems.
- Solid communication and collaboration skills.
Microsoft Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Microsoft and has not been reviewed or approved by Microsoft.
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Fair & Transparent Compensation — Pay is presented as broadly competitive overall, with clear role/level/location variation and an emphasis on using posted ranges and band information for apples-to-apples comparisons.
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Retirement Support — Retirement benefits are described as a standout, highlighted by a strong 401(k) match structure and immediate vesting, plus additional plan features for tax-advantaged saving.
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Parental & Family Support — Family-oriented benefits are portrayed as a meaningful strength, with substantial paid parental leave and added supports like back-up care and adoption/surrogacy assistance.
Microsoft Insights
What We Do
At Microsoft, our mission is to empower every person and every organization on the planet to achieve more. Our mission is grounded in both the world in which we live and the future we strive to create. Today, we live in a mobile-first, cloud-first world, and the transformation we are driving across our businesses is designed to enable Microsoft and our customers to thrive in this world.








